CN112755434A - Rope skipping action standard degree evaluation method and device - Google Patents

Rope skipping action standard degree evaluation method and device Download PDF

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Publication number
CN112755434A
CN112755434A CN202011535919.2A CN202011535919A CN112755434A CN 112755434 A CN112755434 A CN 112755434A CN 202011535919 A CN202011535919 A CN 202011535919A CN 112755434 A CN112755434 A CN 112755434A
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rope skipping
axis gyroscope
data
rope
yaw
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CN112755434B (en
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俞朝杰
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Zhejiang Haoxiguan Technology Co ltd
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Zhejiang Haoxiguan Technology Co ltd
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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B5/00—Apparatus for jumping
    • A63B5/20—Skipping-ropes or similar devices rotating in a vertical plane
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B24/00—Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
    • A63B24/0003—Analysing the course of a movement or motion sequences during an exercise or trainings sequence, e.g. swing for golf or tennis
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/18—Complex mathematical operations for evaluating statistical data, e.g. average values, frequency distributions, probability functions, regression analysis
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B24/00—Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
    • A63B24/0003—Analysing the course of a movement or motion sequences during an exercise or trainings sequence, e.g. swing for golf or tennis
    • A63B24/0006—Computerised comparison for qualitative assessment of motion sequences or the course of a movement
    • A63B2024/0012—Comparing movements or motion sequences with a registered reference

Abstract

The invention relates to a rope skipping action standard degree evaluation method and a rope skipping action standard degree evaluation device, wherein the rope skipping action standard degree evaluation method is used for calculating and fitting X, Z, pitch, yaw sine curves of a rope skipping detected circle through numerical values; calculating the motion amplitude of the arm according to the X, Z sine curves of the detected loop of the skipping rope; calculating the wrist movement amplitude according to the sine curves of pitch and yaw of the measured ring of the skipping rope; and evaluating the rope skipping action standard degree according to the arm motion amplitude and the wrist motion amplitude. The six-axis gyroscope is additionally arranged on the existing rope skipping handle adopting the Hall chip technology, the arm motion amplitude and the wrist motion amplitude are calculated, the standard degree of the action of a user during rope skipping is judged, the action is fed back to the user, the action of the user is normalized, the user can perform rope skipping with correct action, the rope skipping action of the user is normalized, and the possibility of motion damage is reduced.

Description

Rope skipping action standard degree evaluation method and device
Technical Field
The invention belongs to the field of rope skipping action evaluation, and particularly relates to a rope skipping action standard degree evaluation method and device.
Background
With the continuous improvement of living standard of people, people pay more and more attention to the physical health condition of the people, so more and more people select to improve the physical quality of the people through body-building exercise. Skipping ropes are simple, good for both young and old, aerobic exercises with many benefits, and require very simple equipment, and are therefore widely used.
The existing skipping rope handle has a single function and only supports a counting function. When the user uses the rope skipping rope, if action errors exist, sport injuries can be caused, and meanwhile, the action of skipping ropes influences the skipping rope achievement of the user.
Therefore, how to feed back the user's rope skipping action standard during rope skipping is an urgent need to be solved.
Disclosure of Invention
The invention aims to provide a rope skipping action standard degree evaluation method and device.
The technical scheme adopted by the invention for solving the technical problems is as follows: provided is a rope skipping action standard degree evaluation method based on cooperation of a six-axis gyroscope and a Hall sensor, wherein the method comprises the following steps:
acquiring Hall sensor signal data and six-axis gyroscope data in rope skipping action operation through a gyroscope and a Hall sensor;
screening out the six-axis gyroscope data of the rope skipping detected ring according to the Hall sensor signals;
calculating the X, Z, pitch, yaw sine curves of the tested circle of the rope skipping in four directions by numerical calculation;
calculating the motion amplitude of the arm according to the X, Z sine curves of the detected loop of the skipping rope;
calculating the wrist movement amplitude according to the sine curves of pitch and yaw of the measured ring of the skipping rope;
and evaluating the rope skipping action standard degree according to the arm motion amplitude and the wrist motion amplitude.
Further, the method for fitting the sine curve of the rope skipping detected circle in the X direction through numerical calculation comprises the following steps:
acquiring n data samples of six-axis gyroscope data in the X direction, and setting the mean value of the n data samples to zero;
let the fitted curve in the X direction be f (X) ax*sin(bxx+cx)；
Calculating a parameter a according to n data samples of six-axis gyroscope data in the X directionx、bx、cxTo thereby obtain a formula of a fitted curve in the X direction。
Furthermore, in the method of acquiring n data samples of the six-axis gyroscope data in the X direction and setting the mean value of the n data samples to zero, the n data samples are v, and v is ═ v1,v2,v3,…,vn](ii) a After zero setting
Figure BDA0002853445900000021
Further, the parameter a is calculated according to n data samples of the six-axis gyroscope data in the X directionx、bx、cxThe method comprises the following steps:
parameter(s)
Figure BDA0002853445900000022
Where t represents the time of the turn,
Figure BDA0002853445900000023
wherein n is the time taken by the loop, and f represents the sampling frequency of n data samples;
calculating vnewArea enclosed by curve y-0
Figure BDA0002853445900000024
By means of the calculation of the properties of the sinusoid,
Figure BDA0002853445900000025
calculating vnewiCorresponding to
Figure BDA0002853445900000026
And from all w1～wnThe maximum value of the two is recorded as wjThe sinusoidal property is calculated, through the sinusoidal property,
Figure BDA0002853445900000027
further, the method for fitting the Z-direction sine curve of the rope skipping detected circle through numerical calculation comprises the following steps:
acquiring n data samples of six-axis gyroscope data in the Z direction, and setting the mean value of the n data samples to zero;
let the fitting curve in the Z direction be f (Z) ═ az*sin(bzx+cz)；
Calculating a parameter a according to n data samples of six-axis gyroscope data in the Z directionz、bz、czThereby obtaining a formula of a fitted curve in the Z direction.
Further, the method for fitting the sine curve of the pitch direction of the measured rope skipping circle through numerical calculation comprises the following steps:
acquiring n data samples of six-axis gyroscope data in the pitch direction, and setting the mean value of the n data samples to zero;
let the fitted curve in the pitch direction be f (pitch) ═ apitch*sin(bpitchx+cpitch)；
Calculating a parameter a according to n data samples of six-axis gyroscope data in pitch directionpitch、bpitch、cpitchThereby obtaining a formula for a curve fitted to the pitch direction.
Further, the method for fitting the sine curve in the yaw direction of the tested rope skipping circle through numerical calculation comprises the following steps:
acquiring n data samples of the data of the six-axis gyroscope in the yaw direction, and setting the mean value of the n data samples to zero;
let the curve fitted in the direction of yaw be f (yaw) ═ ayaw*sin(byawx+cyaw)；
Calculating parameter a from n data samples of the six-axis gyroscope data in the yaw directionyaw、byaw、cyawThereby obtaining a formula of fitting a curve in the yaw direction.
Further, the method for calculating the arm movement amplitude according to the sinusoids of X, Z in two directions of the detected loop of the skipping rope comprises the following steps:
the motion range of the arm of the rope skipping detected ring is
Figure BDA0002853445900000031
Further, the method for evaluating the standard degree of rope skipping actions according to the arm motion amplitude and the wrist motion amplitude comprises the following steps:
respectively substituting the arm motion amplitude and the wrist motion amplitude into corresponding preset judgment intervals, thereby obtaining an arm motion amplitude score and a wrist motion amplitude score of the rope skipping detected ring;
and calculating the average value of the arm movement amplitude scores and the average value of the wrist movement amplitude scores of all the tested rings of the skipping rope, and calculating the average value of the arm movement amplitude scores and the average value of the wrist movement amplitude scores, namely the final skipping rope action standard degree score.
The invention also provides a rope skipping action standard degree evaluation device based on cooperation of the six-axis gyroscope and the Hall sensor, which comprises the following components:
the data acquisition module is suitable for acquiring Hall sensor signal data and six-axis gyroscope data in rope skipping action operation through the gyroscope and the Hall sensor;
the data processing module is suitable for screening out the six-axis gyroscope data of the rope skipping detected ring according to the Hall sensor signal;
the sine curve calculation module is suitable for fitting X, Z, pitch, yaw sine curves of the rope skipping detected circle through numerical calculation;
the arm movement amplitude calculation module is suitable for calculating the arm movement amplitude according to the sine curves of X, Z directions of the detected loop of the skipping rope;
the wrist movement amplitude calculation module is suitable for calculating the wrist movement amplitude according to the sine curves of pitch and yaw of the measured rope skipping circle;
and the action standard degree calculation module is suitable for evaluating the rope skipping action standard degree according to the arm movement amplitude and the wrist movement amplitude.
The invention has the beneficial effects that: the invention provides a rope skipping action standard degree evaluation method and a rope skipping action standard degree evaluation device, wherein the rope skipping action standard degree evaluation method is used for calculating and fitting X, Z, pitch and yaw sine curves of a rope skipping detected circle through numerical values; calculating the motion amplitude of the arm according to the X, Z sine curves of the detected loop of the skipping rope; calculating the wrist movement amplitude according to the sine curves of pitch and yaw of the measured ring of the skipping rope; and evaluating the rope skipping action standard degree according to the arm motion amplitude and the wrist motion amplitude. Through installed a six-axis gyroscope additional on the rope skipping handle at present adoption hall chip technique, six-axis gyroscope data of handle when being used for detecting the rope skipping, and through X, Z, pitch, arm motion amplitude and wrist motion amplitude are calculated to the sinusoidal curve of the fitting of four directions of yaw, and then judge the standard degree of user's action when the rope skipping, and feed back to the user, be favorable to standardizing user's action, let the user carry out the rope skipping motion with correct action, and standardize the rope skipping action of oneself, reduce the possibility of motion damage.
Drawings
The invention is further illustrated by the following figures and examples.
Fig. 1 is a flowchart of a rope skipping action standard degree evaluation method based on cooperation of a six-axis gyroscope and a hall sensor according to an embodiment of the present invention.
Fig. 2 is a schematic block diagram of a rope skipping action standard degree evaluation device based on cooperation of a six-axis gyroscope and a hall sensor according to an embodiment of the present invention.
Detailed Description
The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, and merely illustrates the basic structure of the present invention in a schematic manner, and therefore it shows only the constitution related to the present invention.
Example 1
Referring to fig. 1, an embodiment of the present invention provides 1, a rope skipping action standard degree evaluation method based on cooperation of a six-axis gyroscope and a hall sensor. Through installed a six-axis gyroscope additional on the rope skipping handle at present adoption hall chip technique, six-axis gyroscope data of handle when being used for detecting the rope skipping, and through X, Z, pitch, arm motion amplitude and wrist motion amplitude are calculated to the sinusoidal curve of the fitting of four directions of yaw, and then judge the standard degree of user's action when the rope skipping, and feed back to the user, be favorable to standardizing user's action, let the user carry out the rope skipping motion with correct action, do benefit to the user and improve self rope skipping speed, and standardize the rope skipping action of oneself, reduce the possibility of motion damage.
Specifically, the method comprises:
s110: and acquiring Hall sensor signal data and six-axis gyroscope data in rope skipping action operation through the gyroscope and the Hall sensor.
Specifically, the gyroscope and the hall sensor are disposed within the handle for detecting hall sensor signals and six-axis gyroscope data.
S120: and screening out the six-axis gyroscope data of the rope skipping detected ring according to the Hall sensor signals.
Specifically, data of the corresponding six-axis gyroscope is judged by a Hall sensor signal when the rotating head of the handle rotates for one circle.
S130: the X, Z, pitch, yaw sine curve of the tested circle of the rope skipping in four directions is fitted through numerical calculation.
Specifically, the method comprises the following steps:
s131: the method for fitting the sine curve of the rope skipping detected circle in the X direction through numerical calculation comprises the following steps:
n data samples of six-axis gyroscope data in the X direction are acquired and the mean of the n data samples is set to zero, i.e., n data samples are v, v ═ v1,v2,v3,…,cn](ii) a After zero setting
Figure BDA0002853445900000061
The meaning of this equation is to subtract the average of the data samples from each data sample.
Let the fitted curve in the X direction be f (X) ax*sin(bxx+cx)；
Calculating a parameter a according to n data samples of six-axis gyroscope data in the X directionx、bx、cxThereby obtaining a formula of a fitted curve in the X direction.
Parameter(s)
Figure BDA0002853445900000062
Where t represents the time of the turn,
Figure BDA0002853445900000063
wherein n is the time taken by the loop, and f represents the sampling frequency of n data samples;
calculating vnewArea enclosed by curve y-0
Figure BDA0002853445900000064
By means of the calculation of the properties of the sinusoid,
Figure BDA0002853445900000065
calculating vnewiCorresponding to
Figure BDA0002853445900000066
And from all w1～wnThe maximum value of the two is recorded as wjThe sinusoidal property is calculated, through the sinusoidal property,
Figure BDA0002853445900000067
s132: the method for fitting the Z-direction sine curve of the rope skipping detected circle through numerical calculation comprises the following steps:
acquiring n data samples of six-axis gyroscope data in the Z direction, and setting the mean value of the n data samples to zero;
let the fitting curve in the Z direction be f (Z) ═ az*sin(bzx+cz)；
Calculating a parameter a according to n data samples of six-axis gyroscope data in the Z directionz、bz、czThereby obtaining a formula of a fitted curve in the Z direction.
S133: the method for fitting the sine curve of the pitch direction of the measured loop of the skipping rope through numerical calculation comprises the following steps:
acquiring n data samples of six-axis gyroscope data in the pitch direction, and setting the mean value of the n data samples to zero;
let the fitted curve in the pitch direction be f (pitch) ═ apitch*sin(bpitchx+cpitch)；
Calculating a parameter a according to n data samples of six-axis gyroscope data in pitch directionpitch、bpitch、cpitchThereby obtaining a formula for a curve fitted to the pitch direction.
S134: the method for fitting the sine curve in the yaw direction of the tested circle of the skipping rope by numerical calculation comprises the following steps:
acquiring n data samples of the data of the six-axis gyroscope in the yaw direction, and setting the mean value of the n data samples to zero;
let the curve fitted in the direction of yaw be f (yaw) ═ ayaw*sin(byawx+cyaw)；
Calculating parameter a from n data samples of the six-axis gyroscope data in the yaw directionyaw、byaw、cyawThereby obtaining a formula of fitting a curve in the yaw direction.
The fitted sinusoids of steps S132-S134 are calculated in the same manner as in step S131 and will not be described again.
S140: calculating the arm motion amplitude according to the X, Z sine curves of the tested rope skipping circle, namely: the motion range of the arm of the rope skipping detected ring is
Figure BDA0002853445900000071
S150: calculating the wrist movement amplitude according to the sine curves of pitch and yaw of the tested circle of the skipping rope in two directions, namely: the wrist movement amplitude of the tested ring of the skipping rope is
Figure BDA0002853445900000081
S160: and evaluating the rope skipping action standard degree according to the arm motion amplitude and the wrist motion amplitude.
Specifically, step S160 includes the following steps:
s161: and respectively substituting the arm motion amplitude and the wrist motion amplitude into the corresponding preset judgment intervals, thereby obtaining the arm motion amplitude score and the wrist motion amplitude score of the rope skipping detected ring.
Wherein, the judgment interval corresponding to the arm motion amplitude is [0, p1) 5 min; [ p ]1,p2) 4, 4 minutes; [ p ]2,p3) And 3 min; [ p ]3,p4) And 2 min; [ p ]4,+∞]1, the judgment interval corresponding to the wrist motion amplitude is [0, q ]1) 1, 1 min; [ q ] of1,q2) And 2 min; [ q ] of2,q3) And 3 min; [ q ] of3,q4) 4, 4 minutes; [ q ] of4,+∞]And 5 points.
Wherein, the end value, p, of the judgment interval of the arm motion amplitude1-p4The historical data labeled by the expert can be used to obtain, for example, the historical data labeled by the expert has a score of 5 when the average value of the arm movement amplitude is a, a score of b when the average value of the arm movement amplitude is b, a critical value of 5 and 4, and p1Is (a + b)/2, p2-p4Is obtained by the process of (1) and1similarly, the description will not be repeated here.
End value of the judgment interval of the wrist movement amplitude, q1-q4The specific calculation mode is the same as the calculation mode of the end value of the judgment interval of the arm motion amplitude according to the historical data labeled by the experts.
S162: calculating the average value of the arm movement amplitude scores and the average value of the wrist movement amplitude scores of all the tested rings of the skipping ropes, namely the average value of the arm movement amplitude scores
Figure BDA0002853445900000082
Wherein, S1iRepresenting the average value of the arm movement amplitude score and the wrist movement amplitude score of the ith skipping rope detected ring
Figure BDA0002853445900000083
Wherein, S2iThe wrist movement amplitude score of the ith rope skipping detected circle is shown, and m represents the total number of the rope skipping detected circles. Calculating the average of the arm movement amplitude scores and the wrist movement amplitude scoreThe average value of the average values is the final rope skipping action standard degree score.
Example 2
Referring to fig. 2, an embodiment of the present invention further provides a rope skipping action standard degree evaluation device based on cooperation of a six-axis gyroscope and a hall sensor, including:
and the data acquisition module is suitable for acquiring Hall sensor signal data and six-axis gyroscope data in rope skipping action operation through the gyroscope and the Hall sensor. Specifically, the gyroscope and the hall sensor are disposed within the handle for detecting hall sensor signals and six-axis gyroscope data.
And the data processing module is suitable for screening the six-axis gyroscope data of the rope skipping detected ring according to the Hall sensor signal. Specifically, data of the corresponding six-axis gyroscope is judged by a Hall sensor signal when the rotating head of the handle rotates for one circle.
And the sinusoidal curve calculation module is suitable for fitting X, Z, pitch, yaw sinusoidal curves of the tested rope skipping circle through numerical calculation.
Specifically, the method comprises the following steps:
s131: the method for fitting the sine curve of the rope skipping detected circle in the X direction through numerical calculation comprises the following steps:
n data samples of six-axis gyroscope data in the X direction are acquired and the mean of the n data samples is set to zero, i.e., n data samples are v, v ═ v1,v2,v3,…,vn](ii) a After zero setting
Figure BDA0002853445900000091
The meaning of this equation is to subtract the average of the data samples from each data sample.
Let the fitted curve in the X direction be f (X) ax*sin(bxx+cx)；
Calculating a parameter a according to n data samples of six-axis gyroscope data in the X directionx、bx、cxThereby obtaining a formula of a fitted curve in the X direction.
Parameter(s)
Figure BDA0002853445900000092
Where t represents the time of the turn,
Figure BDA0002853445900000093
wherein n is the time taken by the loop, and f represents the sampling frequency of n data samples;
calculating vnewArea enclosed by curve y-0
Figure BDA0002853445900000094
By means of the calculation of the properties of the sinusoid,
Figure BDA0002853445900000095
calculating vnewiCorresponding to
Figure BDA0002853445900000096
And from all w1～wnThe maximum value of the two is recorded as wjThe sinusoidal property is calculated, through the sinusoidal property,
Figure BDA0002853445900000101
s132: the method for fitting the Z-direction sine curve of the rope skipping detected circle through numerical calculation comprises the following steps:
acquiring n data samples of six-axis gyroscope data in the Z direction, and setting the mean value of the n data samples to zero;
let the fitting curve in the Z direction be f (Z) ═ az*sin(bzx+cz)；
Calculating a parameter a according to n data samples of six-axis gyroscope data in the Z directionz、bz、czThereby obtaining a formula of a fitted curve in the Z direction.
S133: the method for fitting the sine curve of the pitch direction of the measured loop of the skipping rope through numerical calculation comprises the following steps:
acquiring n data samples of six-axis gyroscope data in the pitch direction, and setting the mean value of the n data samples to zero;
let the fitted curve in the pitch direction be f (pitch) ═ apitch*sin(bpitchx+cpitch)；
Calculating a parameter a according to n data samples of six-axis gyroscope data in pitch directionpitch、bpitch、cpitchThereby obtaining a formula for a curve fitted to the pitch direction.
S134: the method for fitting the sine curve in the yaw direction of the tested circle of the skipping rope by numerical calculation comprises the following steps:
acquiring n data samples of the data of the six-axis gyroscope in the yaw direction, and setting the mean value of the n data samples to zero;
let the curve fitted in the direction of yaw be f (yaw) ═ ayaw*sin(byawx+cyaw)；
Calculating parameter a from n data samples of the six-axis gyroscope data in the yaw directionyaw、byaw、cyawThereby obtaining a formula of fitting a curve in the yaw direction.
The fitted sinusoids of steps S132-S134 are calculated in the same manner as in step S131 and will not be described again.
The arm motion amplitude calculation module is suitable for calculating the arm motion amplitude according to the sinusoids of X, Z in two directions of the detected loop of the skipping rope, namely: the motion range of the arm of the rope skipping detected ring is
Figure BDA0002853445900000102
The wrist movement amplitude calculation module is suitable for calculating the wrist movement amplitude according to the sine curves of pitch and yaw of the measured rope skipping loop in two directions, namely: the wrist movement amplitude of the tested ring of the skipping rope is
Figure BDA0002853445900000111
Figure BDA0002853445900000112
And the action standard degree calculation module is suitable for evaluating the rope skipping action standard degree according to the arm movement amplitude and the wrist movement amplitude.
Specifically, the method comprises the following steps:
s161: and respectively substituting the arm motion amplitude and the wrist motion amplitude into the corresponding preset judgment intervals, thereby obtaining the arm motion amplitude score and the wrist motion amplitude score of the rope skipping detected ring.
Wherein, the judgment interval corresponding to the arm motion amplitude is [0, p1) 5 min; [ p ]1,p2) 4, 4 minutes; [ p ]2,p3) And 3 min; [ p ]3,p4) And 2 min; [ p ]4,+∞]1, the judgment interval corresponding to the wrist motion amplitude is [0, q ]1) 1, 1 min; [ q ] of1,q2) And 2 min; [ q ] of2,q3) And 3 min; [ q ] of3,q4) 4, 4 minutes; [ q ] of4,+∞]And 5 points.
Wherein, the end value, p, of the judgment interval of the arm motion amplitude1-p4The historical data labeled by the expert can be used to obtain, for example, the historical data labeled by the expert has a score of 5 when the average value of the arm movement amplitude is a, a score of b when the average value of the arm movement amplitude is b, a critical value of 5 and 4, and p1Is (a + b)/2, p2-p4Is obtained by the process of (1) and1similarly, the description will not be repeated here.
End value of the judgment interval of the wrist movement amplitude, q1-q4The specific calculation mode is the same as the calculation mode of the end value of the judgment interval of the arm motion amplitude according to the historical data labeled by the experts.
S162: calculating the average value of the arm movement amplitude scores and the average value of the wrist movement amplitude scores of all the tested rings of the skipping ropes, namely the average value of the arm movement amplitude scores
Figure BDA0002853445900000113
Wherein, S1iRepresenting the average value of the arm movement amplitude score and the wrist movement amplitude score of the ith skipping rope detected ring
Figure BDA0002853445900000114
Wherein, S2iThe wrist movement amplitude score of the ith rope skipping detected circle is shown, and m represents the total number of the rope skipping detected circles. And calculating the average value of the arm movement amplitude scores and the average value of the wrist movement amplitude scores, namely the final rope skipping action standard degree score.
In summary, the invention provides a rope skipping action standard degree evaluation method and device, wherein the rope skipping action standard degree evaluation method is used for fitting sinusoidal curves of X, Z, pitch and yaw of a rope skipping detected circle through numerical calculation; calculating the motion amplitude of the arm according to the X, Z sine curves of the detected loop of the skipping rope; calculating the wrist movement amplitude according to the sine curves of pitch and yaw of the measured ring of the skipping rope; and evaluating the rope skipping action standard degree according to the arm motion amplitude and the wrist motion amplitude. Through installed a six-axis gyroscope additional on the rope skipping handle at present adoption hall chip technique, six-axis gyroscope data of handle when being used for detecting the rope skipping, and through X, Z, pitch, arm motion amplitude and wrist motion amplitude are calculated to the sinusoidal curve of the fitting of four directions of yaw, and then judge the standard degree of user's action when the rope skipping, and feed back to the user, be favorable to standardizing user's action, let the user carry out the rope skipping motion with correct action, and standardize the rope skipping action of oneself, reduce the possibility of motion damage.
In light of the foregoing description of preferred embodiments in accordance with the invention, it is to be understood that numerous changes and modifications may be made by those skilled in the art without departing from the scope of the invention. The technical scope of the present invention is not limited to the contents of the specification, and must be determined according to the scope of the claims.

Claims (10)

1. A rope skipping action standard degree evaluation method based on cooperation of a six-axis gyroscope and a Hall sensor is characterized by comprising the following steps:
acquiring Hall sensor signal data and six-axis gyroscope data in rope skipping action operation through a gyroscope and a Hall sensor;
screening out the six-axis gyroscope data of the rope skipping detected ring according to the Hall sensor signals;
calculating the X, Z, pitch, yaw sine curves of the tested circle of the rope skipping in four directions by numerical calculation;
calculating the motion amplitude of the arm according to the X, Z sine curves of the detected loop of the skipping rope;
calculating the wrist movement amplitude according to the sine curves of pitch and yaw of the measured ring of the skipping rope;
and evaluating the rope skipping action standard degree according to the arm motion amplitude and the wrist motion amplitude.
2. The rope skipping action standard degree evaluation method based on cooperation of the six-axis gyroscope and the Hall sensor according to claim 1, wherein the method for fitting the sine curve of the tested circle of the rope skipping in the X direction through numerical calculation comprises the following steps:
acquiring n data samples of six-axis gyroscope data in the X direction, and setting the mean value of the n data samples to zero;
let the fitted curve in the X direction be f (X) ax*sin(bxx+cx)；
Calculating a parameter a according to n data samples of six-axis gyroscope data in the X directionx、bx、cxThereby obtaining a formula of a fitted curve in the X direction.
3. The rope skipping action standard degree evaluation method based on cooperation of the six-axis gyroscope and the hall sensor according to claim 2, wherein n data samples of the six-axis gyroscope data in the X direction are obtained, and in the method of setting the average value of the n data samples to zero, the n data samples are v, v ═ v [ v ═ v [ ] [ [ v ] ] [ -v ] ]1，v2，v3，...，vn](ii) a After zero setting
Figure FDA0002853445890000011
4. The device as claimed in claim 3The rope skipping action standard degree evaluation method based on cooperation of the six-axis gyroscope and the Hall sensor is characterized in that the parameter a is calculated according to n data samples of the six-axis gyroscope data in the X directionx、bx、cxThe method comprises the following steps:
parameter(s)
Figure FDA0002853445890000021
Where t represents the time of the turn,
Figure FDA0002853445890000022
wherein n is the time taken by the loop, and f represents the sampling frequency of n data samples;
calculating vnewArea enclosed by curve y-0
Figure FDA0002853445890000023
By means of the calculation of the properties of the sinusoid,
Figure FDA0002853445890000024
computing
Figure FDA0002853445890000025
Corresponding to
Figure FDA0002853445890000026
And from all w1～wnThe maximum value of the two is recorded as wjThe sinusoidal property is calculated, through the sinusoidal property,
Figure FDA0002853445890000027
5. the rope skipping action standard degree evaluation method based on the cooperation of the six-axis gyroscope and the Hall sensor according to claim 2, wherein the method for fitting the Z-direction sine curve of the rope skipping detected circle through numerical calculation comprises the following steps:
acquiring n data samples of six-axis gyroscope data in the Z direction, and setting the mean value of the n data samples to zero;
let the fitting curve in the Z direction be f (Z) ═ az*sin(bzx+cz)；
Calculating a parameter a according to n data samples of six-axis gyroscope data in the Z directionz、bz、czThereby obtaining a formula of a fitted curve in the Z direction.
6. The rope skipping action standard degree evaluation method based on the six-axis gyroscope and the Hall sensor in cooperation according to claim 5, wherein the method for fitting the sine curve of the pitch direction of the measured circle of the rope skipping through numerical calculation comprises the following steps:
acquiring n data samples of six-axis gyroscope data in the pitch direction, and setting the mean value of the n data samples to zero;
let the fitted curve in the pitch direction be f (pitch) ═ apitch*sin(bpitchx+cpitch)；
Calculating a parameter a according to n data samples of six-axis gyroscope data in pitch directionpitch、bpitch、cpitchThereby obtaining a formula for a curve fitted to the pitch direction.
7. The rope skipping action standard degree evaluation method based on cooperation of the six-axis gyroscope and the Hall sensor according to claim 6, wherein the method for fitting the sine curve of the yaw direction of the rope skipping detected circle through numerical calculation comprises the following steps:
acquiring n data samples of the data of the six-axis gyroscope in the yaw direction, and setting the mean value of the n data samples to zero;
let the curve fitted in the direction of yaw be f (yaw) ═ ayaw*sin(byawx+cyaw)；
Calculating parameter a from n data samples of the six-axis gyroscope data in the yaw directionyaw、byaw、cyawThereby obtaining a formula of fitting a curve in the yaw direction.
8. The rope skipping action standard degree evaluation method based on the cooperation of the six-axis gyroscope and the Hall sensor according to claim 7, wherein the method for calculating the arm movement amplitude according to the sinusoids of X, Z two directions of the measured circle of the rope skipping is characterized in that:
the motion range of the arm of the rope skipping detected ring is
Figure FDA0002853445890000031
9. The rope skipping action standard degree evaluation method based on cooperation of the six-axis gyroscope and the Hall sensor according to claim 1, wherein the method for evaluating the rope skipping action standard degree according to the arm movement amplitude and the wrist movement amplitude comprises the following steps:
respectively substituting the arm motion amplitude and the wrist motion amplitude into corresponding preset judgment intervals, thereby obtaining an arm motion amplitude score and a wrist motion amplitude score of the rope skipping detected ring;
and calculating the average value of the arm movement amplitude scores and the average value of the wrist movement amplitude scores of all the tested rings of the skipping rope, and calculating the average value of the arm movement amplitude scores and the average value of the wrist movement amplitude scores, namely the final skipping rope action standard degree score.
10. A rope skipping action standard degree evaluation device based on cooperation of a six-axis gyroscope and a Hall sensor is characterized by comprising:
the data acquisition module is suitable for acquiring Hall sensor signal data and six-axis gyroscope data in rope skipping action operation through the gyroscope and the Hall sensor;
the data processing module is suitable for screening out the six-axis gyroscope data of the rope skipping detected ring according to the Hall sensor signal;
the sine curve calculation module is suitable for fitting X, Z, pitch, yaw sine curves of the rope skipping detected circle through numerical calculation;
the arm movement amplitude calculation module is suitable for calculating the arm movement amplitude according to the sine curves of X, Z directions of the detected loop of the skipping rope;
the wrist movement amplitude calculation module is suitable for calculating the wrist movement amplitude according to the sine curves of pitch and yaw of the measured rope skipping circle;
and the action standard degree calculation module is suitable for evaluating the rope skipping action standard degree according to the arm movement amplitude and the wrist movement amplitude.
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